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- Title
Star-Shaped Polydimethylsiloxanes with Organocyclotetrasilsesquioxane Branching-Out Centers: Synthesis and Properties.
- Authors
Dyuzhikova, Yulia S.; Anisimov, Anton A.; Peregudov, Alexander S.; Buzin, Mikhail I.; Nikiforova, Galina G.; Vasil'ev, Viktor G.; Kostrov, Sergey A.; Buzin, Alexander I.; Stupnikov, Alexei A.; Malakhova, Yulia N.; Shchegolikhina, Olga I.; Muzafarov, Aziz M.
- Abstract
New non-crystallizable low-dispersity star-shaped polydimethylsiloxanes (PDMS) containing stereoregular cis-tetra(organo)(dimethylsiloxy)cyclotetrasiloxanes containing methyl-, tolyl- and phenyl-substituents at silicon atoms and the mixture of four stereoisomers of tetra[phenyl(dimethylsiloxy)]cyclotetrasiloxane as the cores were synthesized. Their thermal and viscous properties were studied. All synthesized compounds were characterized by a complex of physicochemical analysis methods: nuclear magnetic resonance (NMR), FT-IR spectroscopy, gel permeation chromatography (GPC), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), viscometry in solution, rheometry, and Langmuir trough study.
- Subjects
DIMETHYLPOLYSILOXANES; GEL permeation chromatography; NUCLEAR magnetic resonance; DIFFERENTIAL scanning calorimetry; THERMOGRAVIMETRY
- Publication
Polymers (20734360), 2022, Vol 14, Issue 2, p285
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym14020285